Calculation on Effective Area of Cultivated Land in Naoli River Basin Based on Grey System Theory

Zhou Hao; Chen Zhushu; Feng Xiaojuan

doi:10.13961/j.cnki.stbctb.2021.03.022

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Calculation on Effective Area of Cultivated Land in Naoli River Basin Based on Grey System Theory

- Calculation on Effective Area of Cultivated Land in Naoli River Basin Based on Grey System Theory
- Bulletin of Soiland Water Conservation Vol. 41, Issue 3, Pages: 159-165(2021)
- 作者机构：
  
  1. 湖南师范大学资源与环境科学学院,湖南,长沙,410081
  2. 益阳市烟草专卖局,湖南,益阳,413002
  3. 嵩山少林武术职业学院, 河南登封,452470
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2021.03.022
  CLC： F301.24
- Published：2021
- 稿件说明：
移动端阅览
Zhou Hao, Chen Zhushu, Feng Xiaojuan. Calculation on Effective Area of Cultivated Land in Naoli River Basin Based on Grey System Theory[J]. Bulletin of Soiland Water Conservation, 2021, 41(3): 159-165.
DOI：

Zhou Hao, Chen Zhushu, Feng Xiaojuan. Calculation on Effective Area of Cultivated Land in Naoli River Basin Based on Grey System Theory[J]. Bulletin of Soiland Water Conservation, 2021, 41(3): 159-165. DOI： 10.13961/j.cnki.stbctb.2021.03.022.

摘要

[目的

]

研究如何精准提取净耕地利用信息，为农田管理与耕地科学利用提供理论支持。[方法

]

基于灰色系统理论提出净耕地预测思路，以典型粮食产区挠力河流域为研究区，在土地利用变更调查数据支持下，运用净耕地系数、突变检测模型、灰色动态模型（GM）等数理模型，提取并验证净耕地（包括旱地和水田）利用信息。[结果

]

挠力河流域土地利用斑块面积变化表现出显著的“灰色”特征，对20 hm

等额面积区间的非旱地和非水田斑块面积累加处理，可增强数据列的规律性特征；GM （1，1）灰色系统模型和多项式预测方法均可较为准确地提取非旱地和非水田面积信息。2018年，挠力河流域旱地和水田的净面积分别是1.06×10

和3.87×10

，对应的净系数为97.65%和98.07%。[结论

]

耕地斑块面积变化具有灰色特征，可采用灰色系统理论进行净耕地面积预测。

Abstract

[Objective] The cultivated land use information was accurately extracted in order to provide theoretical support for farmland management and scientific use of cultivated lands. [Methods] Effective area of arable land in the Naoli River basin was determined using grey system theory and associated theoretical assumptions

mathematical models

mutation detection model

and empirical analysis. Data used in the study came from land use change survey data and the net cultivated land coefficient. [Results] Land use area showed significant grey characteristics. If accumulative treatments were applied to the area of the arable map within a certain area

the linear differential fitting equation could be used to predict the effective area of arable land in Naoli River basin. The grey system theory hypothesis could be applied for the accurate extraction of dryland and paddy fields. In 2018

the effective area of dryland and paddy fields was 1.06×106 hm2 and 3.87×105 hm2 in the Naoli River basin. The effective dryland coefficient and the paddy field coefficient were 97.65% and 98.07%

respectively. At the same time

the spatial distribution of effective arable land showed that more attention should be given to their actual utilization and development status in the downstream area of the outer Qixing River in the Naoli River basin

and in the northern part of Youyi County and the western part of Baoqing County. [Conclusion] Grey system theory was proposed for determining changes in effective area of arable land. Gray system theory was found to be feasible for extracting effective cultivated land and its coefficient.

关键词

Keywords

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